Bohemian violinist and composer (1717-1757) who expanded the famous Mannheim school. He taught the violin to leading musicians such as Christian Cannabich, the Toeschi brothers, Ignaz Fränzl and Wilhelm Cramer. He joined the Mannheim court chapel in 1741 and was first violin from 1745 to 1746. In 1753 the post of Director of Instrumental Music was apparently created specially for him. One of his symphonies was played at the Concert Spirituel in Paris in 1751 although it is not certain he attended. He often performed there between 1754 and 1755.
